Change-speed gearing.



PATENTED DEC. 12, 1905.

L. W. ANDERSON.

CHANGE SPEED GEARING.

APPLICATION FILED JUNE 17,1904.

2 SHEETS-SHEET l.

' No. 307,104. PATENTED DEC. 12, 1905.

L. W. ANDERSON.-

GHANGE SPEED GEARING.

APPLICATION FILED JUNE 17,1904.

2 SHEETS-SHBET 2.

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. AI'ZUR/VEYS UNITED STATES PATENT OFFICE.

LARZ W. ANDERSON, CINCINNATI, OHIO, ASSIGNOR TO THE CINCIN- NATI SHAPERCOMPANY, OF CINCINNATI, OHIO.

CHANGE-SPEED GEARING- Specification of Letters Patent.

Patented. Dec. 12, 1905.

Application filed June 17, 1904. Serial No. 212,978.

To (LZZ whom it may concern:

Be it known that I, LARZ W. ANDERSON, a citizen of the United States,and a resident of Cincinnati, in the county of Hamilton and State ofOhio, have invented a certain new and useful Improvement in Change-SpeedGearing, of which the following is a full,clear, and exactdescription,reference being had to the accompanying drawings, which form part of myspecification. 7,

My invention relates to a speed-changing device; and its object is toproduce a simple and effective change-gear box which may be applied toany machine. appear as I proceed with my specification.

In the drawings, Figure 1 is a front elevation of my improvedchange-gear box. Fig. 2 is a side elevation of the same. Fig.3 is asection of Fig. 2 on. the line 3 3 thereof, and

Fig. 4 is a section of Fig. 2 on the line 4 4 thereof.

A is the change-gear box, containing the speed-changing mechanism, and,as stated 1n the preamble, this box may be attached to any machine, itsproper attachment depending simply on the relations of the driving anddriven shafts in the particular machine.

B is the driving-shaft, which is operated in any manner-as, for example,by means of the pulley B.

C is the driven shaft, which would deter mine the speed of theparticular parts to be operated in the machine to which the changegearbox might be attached.

Keyed,respectively, to the shafts B and C are the cones of gears D andE, the two cones being reversed relatively to each other with the gearsof corresponding inverse ratio placed opposite each other. A shaft E iseccentrically mounted in disks E E, which-are suitably ournaled at therear in the side walls of the change-gear box A. A frame F is journaledon the shaft E and projects forward between the shafts B and C throughan opening G in the front face of the box A, its sides passing aroundthe ends of the cones D and E. A shaft H and a rod I form the front ofthe frame F. a

A sliding gear J is j ournaled on the shaft H. Said gear is embraced bya forked arm or bracket K, which slides on the shaft H, and the rod I,which is thus made rigid with reference to the frame F as tothe'direction in which it swings on the shaft, but readily Itsadvantages will movable in the direction of the shaft H. The arrangementof the parts is such that the intermediate gear is adapted to engage anypair of opposite gears composing the two cones.

A crank E, secured to one of the disks E, serves by reason of theeccentric location of .the shaft E in the disks E to throw the frame Fforward, which throws the intermediate gear out of engagement with anypair of the cone-gears with which it may have engaged. Then afterswinging the frame F and moving the intermediate gear J opposite thepair of gears next desired to be put in train the movement of the crankE back into its normal position brings the intermediate gear intoengagement with these gears.

The ends of the shaft H are prolonged at each side beyond the frame Fand cut down to form rectangular lugs h h. At each side of the opening Gin the gear-box A are cut a number of notches h, adapted to receive thelugs h, there being a pair of opposite notches h for each pair ofoppositely-placed conegears. These notches and lugs serve to lock theframe in position, so as to prevent any swinging movement. At the sametime the shaft E is so mounted in the disks E that the frame is on adead-center and fixed as to its forward and back movement when theintermediate gear is in engagement with any pair of the cone-gears. Theintermediate gear J is thus locked against either up and down movement,due to the swinging of the frame F on the shaft E or against horizontalmovement permitted by the eccentric mounting of said shaft when theintermediate gear is in operative position.

The operation of my improvement is apparent from this description. Ofcourse any number of differentspeeds may be induced in the driven shaftC, depending upon the number of gears in the two cones D and E.

I do not wish to be limited to the particular construction described andshown, as it is apparent that it may be varied without departing fromthe spirit of my invention; but What I desire to claim as new and tocover diate gear carried by said frame and sliding on said frame in adirection parallel to the axes of said cones of gears, said intermediategear being adapted to engage any two of the opposite gears of saidcones, and means for locking said frame in position, substantially asdescribed.

2. A change-gear device comprising a driving-shaft, a driven shaft,oppositely-disposed reversed cones of gears keyed to each shaft, avibratory frame, a shaft on Which said frame is journaled, rotatabledisks in Which said shaft is eccentrically mounted, means for rotatingsaid disks, an intermediate gear sliding on said frame in a directionparallel to the axes of said cones and adapted to engage any pair of theoppositely-disposed gears, and a means for locking said frame inposition, substantially as described.

3. A change-gear device comprising a box open in front, a driving anddriven shaft journaled therein, oppositely-disposed reversed cones ofgears keyed to each shaft, a vibratory frame, a shaft on which saidframe is j ournaled, rotatable disks journaled in the sides of the box,said shaft being eccentrically mounted in said disks, a crank secured toone of said disks, an intermediate gear sliding on said frame in adirection parallel to the axes of said cones of gears and adapted toengage any pair of the oppositely-disposed gears, notches in the sidesof the opening in said gear-box corresponding to the number of pairs ofoppositely-disposed gears, and lugs at the sides of said frame adaptedto engage said notches, substantially as described.

. LARZ WV. ANDERSON. WVitnesses:

CLARENCE E. MEHLHoPE, GEORGE HEIDMAN

